Abstract
A saccade is an ocular movement that is characterized by speed and precision. The velocity profile of this movement is used to extract the maximum speed value, that is one of the most important features of the saccade. A gamma function was used by other authors to describe the waveform shape of the velocity profile. However, this function does not present an optimal profile description in records of patients suffering from Spinocerebellar Ataxia type 2. In order to find a function that better describes the velocity profile, this contribution compares the fittings of several functions through visual and numerical analysis. Results showed a better performance of the partial sums of gaussian series and a gaussian fit function.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
Becerra García, R.A.: Plataforma de procesamiento de electrooculogramas. Caso de estudio: pacientes con Ataxia Espinocerebelosa tipo 2. Ms. thesis, Universidad de Holguín (2013)
Caspi, A., Zivotofsky, A.Z., Gordon, C.R.: Multiple Saccadic Abnormalities in Spinocerebellar Ataxia Type 3 Can Be Linked to a Single Deficiency in Velocity Feedback. Investigative ophthalmology & visual science 54(1), 731–738 (2013). http://www.iovs.org/content/54/1/731.short
Coughlin, M.: Calibration of two dimensional saccadic electro-oculograms using artificial neural networks. PhD, Griffith University, Queensland (2002)
Fahey, M.C., Cremer, P.D., Aw, S.T., Millist, L., Todd, M.J., White, O.B., Halmagyi, M., Corben, L.A., Collins, V., Churchyard, A.J., Tan, K., Kowal, L., Delatycki, M.B.: Vestibular, saccadic and fixation abnormalities in genetically confirmed Friedreich ataxia. Brain 131(4), 1035–1045 (2008). http://brain.oxfordjournals.org/cgi/content/abstract/131/4/1035
García, R.: Procesamiento de registros oculares sacádicos en pacientes de ataxia SCA2. Aplicación del Análisis de Componentes Independientes. Phd. thesis, Universidad de Granada (2010)
García, R., Velázquez, C., Rojas, F., Becerra, R., Velázquez, M., López, L., Velázquez, L.: A comparison of two fitting functions for sacadic pulse component mathematical modelling. In: Proceedings of ANNIIP 2014, Vienna, Austria, pp. 88–94, September 2014
Goffart, L.: Saccadic eye movements. Encyclopedia of Neuroscience, pp. 437–444. Academic Press, Oxford (2009). http://www.sciencedirect.com/science/article/B98GH-4TVBCX5-YV/2/aea673d7d084e8c143439f1e2cd07ecd
Langaas, T., Mon-Williams, M., Wann, J.P., Pascal, E., Thompson, C.: Eye movements, prematurity and developmental co-ordination disorder. Vision Research 38(12), 1817–1826 (1998). http://www.sciencedirect.com/science/article/B6T0W-3T3JBK5-X/2/0e0918534c89a50d4b525a94d26c8dda
Lukander, K.: Measuring gaze point on handheld mobile devices. Ph.D. thesis, Helsinki University of Technology, Helsinki, Finland (2004)
Pötter-Nerger, M., Govender, S., Deuschl, G., Volkmann, J., Colebatch, J.G.: Selective changes of ocular vestibular myogenic potentials in Parkinson’s disease. Movement Disorders (2014). http://onlinelibrary.wiley.com/doi/10.1002/mds.26114/full
Rojas, F., García, R., González, J., Velázquez, L., Becerra, R., Valenzuela, O., San Román, B.: Identification of saccadic components in spinocerebellar ataxia applying an independent component analysis algorithm. Neurocomputing (2012). http://www.sciencedirect.com/science/article/B6V10-45M6G4R-5/2/be1c7b9ddf4b59d44f5f07e02f93e80b
Van Opstal, A., Van Gisbergen, J.: Skewness of saccadic velocity profiles: A unifying parameter for normal and slow saccades. Vision Research 27(5), 731–745 (1987). http://www.sciencedirect.com/science/article/B6T0W-484M5BN-6B/2/38501f6bfeb1e12e0cde519aef29c08c
Velázquez, Luis: Ataxia espino cerebelosa tipo 2. Principales aspectos neurofisiológicos en el diagnóstico, pronóstico y evaluación de la enfermedad. Ediciones, Holguín (2006)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2015 Springer International Publishing Switzerland
About this paper
Cite this paper
García-Bermúdez, R. et al. (2015). Evaluation of Fitting Functions for the Saccade Velocity Profile in Electrooculographic Records. In: Rojas, I., Joya, G., Catala, A. (eds) Advances in Computational Intelligence. IWANN 2015. Lecture Notes in Computer Science(), vol 9095. Springer, Cham. https://doi.org/10.1007/978-3-319-19222-2_49
Download citation
DOI: https://doi.org/10.1007/978-3-319-19222-2_49
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-19221-5
Online ISBN: 978-3-319-19222-2
eBook Packages: Computer ScienceComputer Science (R0)